Gas range



Feb. 23, 1926. 1,574,655

H. W. HUNTER GAS RANGE Filed Jan. 5, 1922 Patented Feb. 23,1926.

j 1,574,655 f UNITED STATES PATENT j OFFICE.

HARRY w. HUNTER, or BALTIMORE, MARYLAND, AssreNon, mam AssIoN nnNT's, To UNION TRUST COMPANY or MARYLAND, TRUSTEE, or BAn monn, I MARYLAND, A CORPORATIONOF MARYLAND.

GA S RANGE.

" r Application filed January 5, 1922. Serial No. 527,141.

To all whom it ma concern."

Be it known that HARRY W. HUNTER, a citizen of the United States, residing at Baltimore, in the county of Baltimore City and State of Maryland, have invented a new and useful Gas Range, of which the following is a specification.

This invention is an attachment by means of which a thermostatic gas control may be applied to a standard ga's'range.

One of the objects of the invention is to provide. a gas range of standard construction provided with an oven burner, and

. simple means whereby a thermostatic control valve may be inter osed between the same and the as manifo d. A further object is to provi e a gas range with the manifold so arranged that the thermostatic control device may be connected thereto without 0 in any manner altering the oven structure to,

which it is applied.

I The invention will be hereinafter fully setiforth and particularly pointed out in the claims. v

Inthe accompanying drawing Figure 1 is a plan vlew, illustrating more or less diagrammatically; a gas'oven constructed in accordance with the invention. Figure 2 is an end view illustrating the invention without the thermostaticattachment.

' Figurelii is a similar view illustratin the thermostatic attachmentin position. 'Figure 4 is a detail 'view illustrating' the thermostatic control device.

Referring. tothe drawing, 10 designates the oven of af'standard gas'range,'and 11' the usual open cooking top. The gasmanifolidyis provided with a section12 leading acrossthezfronto the cooking top 11, to supplythe burnersfor the latter. Extending'rea'rwardlygfrom the section'12, beneath the cookingtop 11, is a section 13, which is conne ted at the back 'ot the range, with aninclined section 14, leading to a a section 15, extending toward the fro'ntotth'e range,

near thetop oiithe'oven; y p g The oven bu er 16', which; may be of any 2 standard constructiomcxtends into the oven through anopening 17,;1npngoyen wall, and 0 is ma ntained inits proper position by the aid of a c0llar 18l In Figure'2,'said' burner is shown as connected to the'secti0n15'of the manifold, by apipe -or -conduit member 19, and "an 'inter osed'eockeo. Said cock confold, is an opening 22, normally. closed by a cover plate, as'shown in Figure 2.

In the form of the invention thus far described, the oven burner is lighted by means of a pilot burner, in the usual way, by a flame introduced throughthe opening 17,

the flow of gas being controlled bythe cock 20 1 when it is desired to apply .atherm-ostatic control for the burner 16, the section '27 is dlsconnected from the burner, and the pipe 19 is disconnected at the cock 20. The

cover plate is also removed from the hole 22. The attachment illustrated in Figures 3 and 4 is then substituted for the parts so removed. A

Referring to Figure 3, 25 designates the valve casing of' the thermostatic control member, which 'is connected by a pipe 26,

with the cock 20,.and by a pipe 27 with the burner. These elements constitute a unitary conduit member. A. smallpipe 28 leads from the pipe 26 to the pilot burner.

in a well-known manner. It will lie observed that the' pipe 27- iseng'aged by the clamp 21,

In operation, the "cook 20 1 is turned-on full and the oven burner 16' is lighted through the oven or broiler door." The pilot burner is lighted from the oven-burner, and thereafter remains lighted aslon'g as gas is permitted to fiow'through the cock 20. The

how of gas to burner 16 is'automatically controlled by the thermostat, and the pilot burner" serves to relight theoven burner if the thermostat should cut off the flow of gas to said burner '16 at any timeyand then subsequentl operate to agamperm'it How of gas to the urner. 'The pilot'burner "there forefservesfasfa "safety'jfactor, in 'a well known manner.

A des e within the pu iew; of. the invention. Excellen results; have been; obtained "with the device I shown in Figure 4 for .Iil lustrative p ea es-w ly, new i$ i form of thermostatic control Referring to Figure 4, 25 designates the valve casing, which .is provided with a gas inlet opening 29 connected with pipe 26, and an outlet opening communicating with pipe 27. Flow of gas through the casing is controlled by a disk-like valve 30, normally pressed to its seat byva"spring 31. The ex- .pansible element of the thermostat consists of a metal tube 32, adjustably connected atone end with a nipple 33, of "the casing 25,

by means of a threaded sleeve 34. The other end of the tube 32 is closed by a plug 35, againsti which bears one end of a rod 36, the other end of which abuts against a stem 37, formed on the valve disk ,30. A handle ,38

.is secured to the sleeve 34, to adjust the position of the tube 32 with respect to the casing 25, so that the device may be set to shut off the gas at different temperatures. It is preferred to provide the handle 38 wit a pointer 39, mounted-to travel over a temperature scale 40 It will be readily understood from Figure 3, that the tube 32 and its enclosed elements, are inserted into the. oven, through the hole 22, in a position where they will be exposed to the heat ofthermostatic control, with the added ex' pense,'if he does not desire to do so. on the other hand, ifthe thermostatic control is desired, it may be applied at any time, with little or no trouble, and without in any manner altering or injuring the stove structure.

Having thus explained the nature of the invention and described 'an operative mannenof constructing and using the same, although'without attempting to set forth all 'of the forms in which 1t may be made, or all of the forms of its use, what'is claimed is IL The combination with a gas range. provided with an oven and having a normally closed opening in one end wall of the oven adapted to receive a thermostatic device, of

a gas manifold terminating in a short branch overlapping said "oven end wall, a burner extending into-the oven through said end wall, and a removable conduit member consisting of two angularly disposed portions lying in, a (plane parallel with said end wall,-

one of sai portions being connected to the burner and the other with said manifold branch, and a 'joint between the portions of said conduit memberlocated opgosite said opening, whereby a similar con nit memher having a thermostatic device located at said joint and extending into the oven may be readily substituted for the first mentioned conduit member;

2.- The combination wlth a gas range provided with an oven and having a normally closed opemng in one end wall of the oven adapted to receive a thermostatic device, of a gas manifold extending back of the oven and terminating in a short forwardly extended l'n'anch overlapping said oven end wall, :r burner extending 'into the oven through said end wall, and a removable conduit member consisting oftwo angularly disposed portions lying in a lane parallel with said end tvall, one of said portlons be ing connected to the burner and the other with said manifold branch, and a joint between the portions of said conduit member being located opposite said opening, whereby a similar conduit member having a thermostatic device located at said joint and extending into the oven may be readily substituted for the-first mentioned conduit memher, and a cock interposed between said manifold branch and the contiguous angujarly disposed portions of the conduitmem- 3. The combination with a gas range provided with an oven, of a gas manifold extending back of the oven and terminating in a short forwardly projecting branch overlapping one end wall of said oven, :1 burner extended into the oven through said end wall, and a removable thermostat member consisting of two angularly disposed conduit members one of which is connected to the burner and the other with the forwardly projected owl-lapping manifold branch, and a thermostatic control device supported by said angularly disposed conduit members at the intersection thereof and extending into the oven.

4. The combination with agas range provided with an oven, of a gas manifold extending back of the oven and terminating in a short forwardly projecting branch overlapping one end wall of said oven, a burner extended into the oven through said end wall, a removable thermostat member consisting of two angularly disposed conduit members one of which is connected to the burner and the other with the forwardly projected overlapping manifold branch, a thermostatic control device supported by sald angularly disposed conduit members at the intersection thereof and extending. into the oven, and a cock interposed between said forwardly pro ecting branch and the contiguous element of the two angularly disposed conduit members.

In testimony whereof I have hereunto set my hand.

HARRY w. HUNTER.

IOU 

